Home / 31,625.36-47,431.04-9,131.15

Finding the Fourth Proportional to 31,625.36, 47,431.04 and 9,131.15

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Solution

The fourth proportional to 31,625.36, 47,431.04 and 9,131.15 is: 13,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,625.36 : 47,431.04 = 9,131.15 : x
  2. Step 2: Convert to fraction form
    31,625.36/47,431.04 = 9,131.15/x
  3. Step 3: Cross multiply
    31,625.36x = 47,431.04 × 9,131.15
  4. Step 4: Simplify right side
    31,625.36x = 433,099,940.90
  5. Step 5: Solve for x
    x = 433,099,940.90/31,625.36
  6. Step 6: Final answer
    x = 13,694.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.